Performance optimizations: Bundle size reduction

Optimizations implemented:
1. Font display: swap + preload for critical fonts
2. ReactQueryDevtools: Lazy load in dev only, exclude from production
3. Auth forms code splitting: LoginForm, PasswordResetRequestForm
4. Remove invalid swcMinify option (default in Next.js 15)

Results:
- Login page: 178 kB → 104 kB (74 kB saved, 42% reduction)
- Password reset: 178 kB → 104 kB (74 kB saved, 42% reduction)
- Homepage: 108 kB (baseline 102 kB shared + 6 kB page)

Remaining issue:
- 102 kB baseline shared by all pages (React Query + Auth loaded globally)

frontend/src/app/(auth)/password-reset/page.tsx

@@ -5,7 +5,22 @@
 
 'use client';
 
-import { PasswordResetRequestForm } from '@/components/auth/PasswordResetRequestForm';
+import dynamic from 'next/dynamic';
+
+// Code-split PasswordResetRequestForm
+const PasswordResetRequestForm = dynamic(
+  () => import('@/components/auth/PasswordResetRequestForm').then((mod) => ({
+    default: mod.PasswordResetRequestForm
+  })),
+  {
+    loading: () => (
+      <div className="space-y-4">
+        <div className="animate-pulse h-10 bg-muted rounded" />
+        <div className="animate-pulse h-10 bg-primary/20 rounded" />
+      </div>
+    ),
+  }
+);
 
 export default function PasswordResetPage() {
   return (
@@ -14,7 +29,7 @@ export default function PasswordResetPage() {
         <h2 className="text-3xl font-bold tracking-tight">
           Reset your password
         </h2>
-        <p className="mt-2 text-sm text-muted-foreground">
+        <p className="mt-2 text-muted-foreground">
           We&apos;ll send you an email with instructions to reset your password
         </p>
       </div>